<template>
  <section>
    <!--工具条:高级查询+新增-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="keywordQuery" v-perm="'department:list'">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd" v-perm="'department:save'">新增</el-button>
         <!-- <el-button type="primary" @click="handleAdd">充值</el-button>-->
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表：列表数据+编辑+删除-->
    <el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="name" label="部门名称" width="120">
      </el-table-column>
      <el-table-column prop="sn" label="部门编号" width="120">
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100">
        <template scope="scope">
         <span v-if="scope.row.state==1" style="color: green">启用</span>
         <span v-else style="color: red">禁用</span>
        </template>
      </el-table-column>
      <el-table-column prop="manager.username" label="部门经理" width="100">
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" width="120">
      </el-table-column>
      <el-table-column label="操作">
        <template scope="scope">
          <el-button size="small" @click="handleSave(scope.$index, scope.row)" v-perm="'department:save'">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)" v-perm="'department:delete'">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条：批量删除+分页栏-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0" v-perm="'department:patchDel'">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange" :page-size="pageSize" :current-page="currentPage"  :total="totals" style="float:right;">
      </el-pagination>
    </el-col>

    <!--新增和编辑界面-->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="部门编号" prop="sn">
          <el-input v-model="saveForm.sn" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="部门名称" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="1">启用</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="部门经理">
          <el-select v-model="saveForm.manager_id" placeholder="请选择">
            <el-option
                v-for="item in managers"
                :label="item.username"
                :value="item.id">
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="上级部门">
          <!--级联框-->
          <el-cascader v-model="saveForm.parent_id"
              :options="deptTree"
              :props="{ checkStrictly: true,label: 'name',value: 'id'}"
              clearable></el-cascader>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>
<script>
export default {
  data() {
    return {
      // 1.分页查询的模型数据
      departments: [],  // 列表数据，回调函数中给他赋值
      listLoading: false,  // 加载框
      pageSize: 5, // 每页显示条数
      currentPage: 1, // 起始页
      totals: 0, // 总条数
      keyword: '',
      sels: [],//列表选中列


      saveFormVisible: false,//编辑界面是否显示
      title:'',
      saveLoading: false,
      saveFormRules: {
        sn: [
          { required: true, message: '请输入部门编号', trigger: 'blur' }
        ],
        name: [
          { required: true, message: '请输入部门名称', trigger: 'blur' }
        ]
      },
      //编辑界面数据
      saveForm: {
        id: null,
        sn: '',
        name: '',
        state: 1,
        manager_id: null,
        parent_id: null,
      },
      managers: [], // 保存部门经理
      deptTree:[], // 保存部门树
    }
  },
  methods: {
    // 1.获取部门列表
    getDepartments() {
      // 组装参数
      let paras = {
        currentPage: this.currentPage,
        pageSize: this.pageSize,
        keyword: this.keyword
      };
      // 显示加载框
      this.listLoading = true;
      // 使用axios发送分页请求，
      this.$http.post("/department",paras).then(res=>{
        this.departments = res.data.data;
        this.totals = res.data.totals;
        this.listLoading = false;
      }).catch(res=>{
        this.$message.error("宝贝，系统繁忙了哦，请稍后重试！！！")
      });
    },
      // 2.点击分页栏触发方法
      handleCurrentChange(val) {
        this.currentPage = val;
        this.getDepartments();
      },

      // 3.高级查询
      keywordQuery() {
      // 将当前页设置为1，防止查询只查当前页
        this.currentPage = 1;
        this.getDepartments();
      },

    // 4.删除操作
    handleDel: function (index, row) {
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        // 开始加载框
        this.listLoading = true;
        //NProgress.start();
        this.$http.delete("/department/"+row.id).then(res=>{
          // 成功之后的处理
          if (res.data.success) {
            // 计算总页数 = 最后一页
            let totalPage = Math.ceil(this.totals/this.pageSize);
            // 如果当前页是最后一页（总页数），而且是最后一条数据，并且不是第一页，让当前页=当前页-1
            if(this.departments.length==1 && this.currentPage!=1){
              this.currentPage = this.currentPage - 1;
            }
            this.getDepartments()
          }else {this.$message.error("系统繁忙，请稍后重试【500】");}
          this.listLoading = false;
        }).catch(res=>{
          this.$message.error("系统繁忙，请稍后重试【400,404】");
        })

      }).catch(res=>{
      })
    },

    // 选项改变的时候触发
    selsChange: function (sels) {
      this.sels = sels;
    },

  // 6.批量删除
  batchRemove: function () {
    var ids = this.sels.map(item => item.id);
    this.$confirm('确认删除选中记录吗？', '提示', {
      type: 'warning'
    }).then(() => {
      this.listLoading = true;
      this.$http.patch("/department",ids).then(res=>{
        if (res.data.success) {
          this.currentPage = 1;
          this.getDepartments();
        }else {
          this.$message.error("系统繁忙，请稍后重试【500】");
        }
        this.listLoading = false;
      }).catch(res=>{
        this.$message.error("系统繁忙，请稍后重试【400】【404】");
      })
    }).catch(() => {

    });

  },

    //显示编辑界面
    handleSave: function (index, row) {
      this.title = "编辑";
      this.saveForm = Object.assign({}, row);
      this.getManagers();
      this.getDeptTree();
      this.saveFormVisible = true;

    },
    //点击新增按钮弹出对话框
    handleAdd: function () {
      this.title = "新增";
      this.saveForm = {
        id: null,
        sn: '',
        name: '',
        state: 1,
        manager_id: null,
        parent_id: null
      };
      //弹出对话框
      this.getManagers();
      this.getDeptTree();
      this.saveFormVisible = true;
    },

    // 点击添加和修改的对话框的提交按钮提交数据
    saveSubmit: function () {
      // 表单验证：只有一个表单项验证不通过就返回false，全部通过就返回true
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.saveLoading = true;
            let result = this.saveForm.parent_id;
            if (result == null || result.length== 0) {
              this.saveForm.parent_id = null;
            }
                if (result.length) {
                  this.saveForm.parent_id = result[result.length-1];
                }else {
                  this.saveForm.parent_id = result;
                }

            this.$http.put("/department",this.saveForm).then(res=>{
              if (res.data.success) {
                this.getDepartments();
              }else {
                this.$message.error("系统繁忙，请稍后重试【500】");
              }
              this.saveLoading = false;
            }).catch(res=>{
              this.$message.error("系统繁忙，请稍后重试【400】【404】");
            })
            // 关闭对话框
            this.saveFormVisible = false;
          });
        }
      });
    },
    // 获取部门树
    getDeptTree() {
          this.$http.get("/department/deptTree").then(res=>{
              this.deptTree = res.data;
          })
    },

    // 获取全部部门经理
    getManagers() {
        this.$http.get("/employee").then(res=>{
          this.managers = res.data;
        })
    }

  },
  mounted() {
    this.getDepartments();
  }

}
</script>

<style scoped>

</style>